anyone who uses his phone / portable audio device on public transport, forcing their fellow passengers to listen to horrifically tinny blasts of what are usually the lamest songs on the radio
offenders usually require multiple requests to lower the volume / turn off the device, and it always helps if more than one person gets involved.
"hey, kid! turn that shit off! damned phonic thugs intruding on my phone calls..."
"the ride sucked - some phonic thugs hopped on just after me, and that's gotta be the worst sounding crap i've ever heard. i'd be embarrassed if people thought i listened to that pathetic shit"
"dude - i'm trying to sleep / read / not tear your stupid phonic thug head off, shut that shit down or get off the damn bus!"